KR970075134A - Attachment that can be attached to a power machine - Google Patents

Attachment that can be attached to a power machine Download PDF

Info

Publication number
KR970075134A
KR970075134A KR1019970021113A KR19970021113A KR970075134A KR 970075134 A KR970075134 A KR 970075134A KR 1019970021113 A KR1019970021113 A KR 1019970021113A KR 19970021113 A KR19970021113 A KR 19970021113A KR 970075134 A KR970075134 A KR 970075134A
Authority
KR
South Korea
Prior art keywords
power
controller
coupled
actuator
power machine
Prior art date
Application number
KR1019970021113A
Other languages
Korean (ko)
Inventor
엘. 카츠마스키 월리
비. 제이콥슨 스코트
씨. 왓츠 버니
Original Assignee
찰스 알. 호지
클라크 이킵먼트 컴패니
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 찰스 알. 호지, 클라크 이킵먼트 컴패니 filed Critical 찰스 알. 호지
Publication of KR970075134A publication Critical patent/KR970075134A/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20Drives; Control devices
    • E02F9/2025Particular purposes of control systems not otherwise provided for
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/96Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/96Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/961Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements with several digging elements or tools mounted on one machine
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20Drives; Control devices
    • E02F9/22Hydraulic or pneumatic drives
    • E02F9/2264Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2267Valves or distributors
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/26Indicating devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Operation Control Of Excavators (AREA)
  • Shovels (AREA)

Abstract

동력 부착 장치는 동력 회로를 갖는 동력 기계에 부착할 수 있다. 이 동력 기계는 또한 운전자 입력을 수신하고 운전자 입력을 나타내는 출력 신호를 제공하는 운전자 입력 디바이스를 포함한다. 부착 장치는 작업도구 및 작업 도구에 부착되어 작업 도구를 작동시키는 액츄에이터를 포함한다. 액츄에이터는 동력 기계의 동력 회로에 연결될 수도 있다. 제어기는 액츄에이터에 작동가능하게 결합될 수 있고 운전자 입력 디바이스에 작동가능하게 결합될 수 있다. 이 제어기는 운전자 입력 디바이스에 의해 제공된 운전자 입력 신호에 기초하여 작업 도구의 동작을 제어한다.The power attachment device can be attached to a power machine having a power circuit. The power machine also includes a driver input device that receives driver input and provides an output signal indicative of the driver input. The attachment device includes a work tool and an actuator attached to the work tool to operate the work tool. The actuator may be connected to the power circuit of the power machine. The controller may be operatively coupled to the actuator and operatively coupled to the driver input device. This controller controls the operation of the work tool based on the driver input signal provided by the driver input device.

Description

동력 기계에 부착할 수 있는 부착 장치Attachment that can be attached to a power machine

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 트리 스페이드 부착 장치를 갖는 스키드 조향 로더의 측면도, 제2도는 제1도에 나타낸 트리 스페이드 부착 장치와 일부의 평면도, 제3도는 제1도 및 제2도에 나타낸 트리 스페이드 부착 장치를 제어하는 제어 시스템의 블록도, 제4도는 제1도 및 제2도에 나타낸 트리 스페이드 부착 장치의 동작을 예시하는 흐름도.1 is a side view of a skid steering loader having a tree spade attachment device, FIG. 2 is a plan view of the tree spade attachment device shown in FIG. 1 and a part thereof, and FIG. 3 is a tree spade attachment device shown in FIG. 1 and FIG. 4 is a flow diagram illustrating the operation of the tree spade attachment device shown in FIGS. 1 and 2.

Claims (17)

압력에 의해 유체를 제공하는 유압 시스템과, 운전자 입력을 수신하여 이 운전자 입력을 표시하는 출력 신호를 제공하는 운전자 입력 디바이스를 갖는 동력 기계에 부착할 수 있는 부착 장치에 있어서, 지지 구조체; 상기 지지 구조체에 장착된 작업도구; 상기작업 도구에 결합되어 상기 작업 도구를 작동시키고 동력 기계의 유압 시스템에 연결될 수 있는 제1유압 액츄에이터; 및 상기 지지 구조체에 장착되고, 상기 제1 유압 액츄에이터에 작동가능하게 결합되고, 부착 장치가 상기 동력기계에 부착될 때, 운전자 입력 디바이스에 작동가능하게 결합될 수 있고, 운전자 입력에 기초하여 상기 작업 도구의 동작을 제어하는 제어기를 포함하는 것을 특징으로하는 부착 장치.An attachment apparatus capable of attaching to a power machine having a hydraulic system for providing fluid by pressure and a driver input device for receiving a driver input and providing an output signal indicative of the driver input, comprising: a support structure; A work tool mounted to the support structure; A first hydraulic actuator coupled to the work tool to operate the work tool and to be connected to a hydraulic system of a power machine; And mounted to the support structure, operably coupled to the first hydraulic actuator, and when an attachment device is attached to the power machine, operatively coupled to a driver input device, the operation based on driver input. And a controller for controlling the operation of the tool. 제1항에 있어서, 상기 동력 기계와 상기 부착 장치중 하나는 동력 기계의 유압 시스템과 액츄에이터 사이에 결합되어 액츄에이터로의 유체의 흐름을 제어하는 밸브를 포함하고, 상기 밸브에 결합되는 액츄에이터에는 제어기가 작동가능하게 결합되어 상기 밸브를 제어하는 것을 특징으로 하는 부착 장치.The actuator of claim 1, wherein one of the power machine and the attachment device includes a valve coupled between the hydraulic system of the power machine and the actuator to control the flow of fluid to the actuator, wherein the actuator coupled to the valve includes a controller. And the device is operatively coupled to control the valve. 제2항에 있어서, 상기 밸브가 상기 부착 장치에 장착되는 것을 특징으로 하는 부착 장치.3. The attachment device of claim 2 wherein said valve is mounted to said attachment device. 제3항에 있어서, 상기 작업 도구는 복수개의 스페이드를 포함하며, 이 스페이드중 하나는 인접 스페이드에 대해 피벗 선회하도록 장착된 피벗식 스페이드인 것을 특징으로 하는 부착 장치.4. The attachment device of claim 3 wherein the work tool comprises a plurality of spades, one of which is a pivoted spade mounted to pivot pivot about an adjacent spade. 제4항에 있어서, 복수개의 유압 액츄에이터를 추가로 포함하며, 하나의 유압 액츄에이터는 복수개의 스페이드에 각각 결합되는 것을 특징으로 하는 부착 장치.5. The attachment device of claim 4, further comprising a plurality of hydraulic actuators, wherein one hydraulic actuator is coupled to the plurality of spades, respectively. 제5항에 있어서, 상기동력 기계의 유압 시스템과 복수개의 유압 액츄에이터 사이에 각각 결합되어 액츄에이터로의 유체의 흐름을 제어하는 복수개의 밸브중 하나를 추가로 포함하며, 복수개의 밸브에 결합되는 복수개의 유압 액츄에에터에는 각각 제어기가 작동가능하게 결합되어 밸브를 제어하는 것을 특징으로 하는 부착 장치.6. The apparatus of claim 5, further comprising one of a plurality of valves respectively coupled between the hydraulic system of the power machine and the plurality of hydraulic actuators to control the flow of fluid to the actuator, the plurality of valves coupled to the plurality of valves. And a controller is operatively coupled to each of the hydraulic actuators to control the valves. 제5항에 있어서, 인접 스페이드에 대해 피벗식 스페이드를 피벗 선회시키기 위해 그 피벗식 스페이드에 결합된 게이트 액츄에이터를 추가로 포함하는 것을 특징으로 하는 부착 장치.6. The attachment apparatus of claim 5 further comprising a gate actuator coupled to the pivoted spade for pivoting the pivoted spade relative to an adjacent spade. 제7항에 있어서, 상기 동력 기계의 유압 시스템과 게이트 액츄에이터간에 결합되어 게이트 액츄에이터로의 흐름을 제어하는 게이트 벨브를 추가로 포함하며, 상기 밸브에 결합되는 상기 게이트 액츄에이터에는 제어기가 결합되어 상기 밸브를 제어하는 것을 특징으로 하는 부착 장치.8. The gate actuator of claim 7, further comprising a gate valve coupled between the hydraulic system of the power machine and the gate actuator to control flow to the gate actuator, wherein the gate actuator coupled to the valve is coupled to a controller to control the valve. Attachment device characterized in that the control. 동력 회로를 갖는 동력 기계용 부착 장치에 있어서, 작업 도구; 상기 작업 도구에 결합되어 작업 도구를 작동시키고, 상기동력 회로로부터 동력을 수신하기 위해 동력 회로에 결합될 수 있는 제1동력 액츄에이터; 및 부착 장치에 장착되고, 상기 동력 액츄에이터에 작동가능하게 결합되어 상기 동력 액츄에이터를 제어하는 제어기를 포함하는 것을 특징으로 하는 부착 장치.An attachment device for a power machine having a power circuit, comprising: a work tool; A first power actuator coupled to the work tool to operate a work tool, the first power actuator being coupled to a power circuit for receiving power from the power circuit; And a controller mounted to the attachment device, the controller operatively coupled to the power actuator to control the power actuator. 제9항에 있어서, 상기 동력 기계는 운전자 입력을 수신하고 운전자 입력에 기초하여 운전자 입력 신호를 제공하는 운전자 입력 디바이스를 포함하고, 제어기는 운전자 입력 신호를 수신하기 위해 상기 운전자 입력 디바이스에 작동가능하게 결합될 수 있고 운전자 입력 신호에 기초하여 상기 작업 도구를 제어하는 것을 특징으로 하는 부착 장치.10. The apparatus of claim 9, wherein the power machine includes a driver input device that receives a driver input and provides a driver input signal based on the driver input, the controller being operatively operable to the driver input device to receive a driver input signal. And wherein the attachment can be coupled and control the work tool based on a driver input signal. 제10항에 있어서, 상기 제어기는 동력 기계의 적어도 한 동작을 제어하도록 동력 기계에 제어 신호를 제공하는 것을 특징으로 하는 부착 장치.11. The attachment apparatus of claim 10, wherein the controller provides a control signal to the power machine to control at least one operation of the power machine. 제11항에 있어서, 상기 제어 신호는 동력 기계의 일부의 동력 회로를 제어하는 것을 특징으로 하는 부착 장치.The attachment device according to claim 11, wherein the control signal controls a power circuit of a portion of the power machine. 제10항에 있어서, 상기 동력 기계는 온/오프 제어기와 비례 제어기중 적어도 하나를 포함하고, 부착장치의 제어기는 비례 제어기와 통신하기 위한 수단을 구비하는 것을 특징으로하는 부착 장치.12. The attachment device of claim 10, wherein the power machine comprises at least one of an on / off controller and a proportional controller, wherein the controller of the attachment device comprises means for communicating with the proportional controller. 제9항에 있어서, 상기 제어기는 마이크로프로세서가 장착된 전자식 제어기를 포함하는 것을 특징으로 하는 부착 장치.10. The attachment device of claim 9, wherein the controller comprises an electronic controller equipped with a microprocessor. 동력 시스템; 상기 동력 시스템에 결합되는 복수개의 동력 기계 액츄에이터; 복수개의 입력을 수신하고 이 압력에 기초하여 상기 동력 기계의 적어도 한 기능을 제어하는 제1제어기; 운전자 입력에 응답하여 입력 신호를 제공하는 운전자 입력 디바이스; 및 상기 동력 기게에 결합된 부착 장치를 포함하는데, 상기 부착 장치는, 작업 도구와; 상기 동력 시스템 및 상기 작업 도구에 연결된 부착 장치 동력 액츄에이터와; 상기 부착 장치에 장착되고,상기 운전자 입력 디바이스에 작동가능하게 결합되어 입력신호를 수신하고, 상기 동력 액츄에이터에 작동가능하게 결합되어 상기 입력 신호에 기초하여 상기 동력 액츄에이터를 제어하는 제2제어기를 포함하는 것을 특징으로 하는 동력 기계.Power system; A plurality of power machine actuators coupled to the power system; A first controller that receives a plurality of inputs and controls at least one function of the power machine based on the pressure; A driver input device providing an input signal in response to the driver input; And an attachment device coupled to the power unit, the attachment device comprising: a work tool; An attachment device power actuator coupled to the power system and the work tool; A second controller mounted to the attachment device, the second controller operatively coupled to the driver input device to receive an input signal and operatively coupled to the power actuator to control the power actuator based on the input signal. Power machine, characterized in that. 제15항에 있어서, 상기 제1제어기와 상기 제2제어기가 결합되어 서로 통신하는 것을 특징으로 하는 동력 기계.The power machine of claim 15, wherein the first controller and the second controller are coupled to communicate with each other. 제16항에 있어서, 상기 제1제어기는 상기 동력 시스템부를 제어하고 상기 제2제어기는 상기 동력 기계의 적어도 한 기능을 제어하는 제어 신호를 제공하는 것을 특징으로 하는 동력 기계.17. The power machine of claim 16, wherein the first controller controls the power system unit and the second controller provides a control signal for controlling at least one function of the power machine. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019970021113A 1996-05-30 1997-05-28 Attachment that can be attached to a power machine KR970075134A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/655,749 US5713419A (en) 1996-05-30 1996-05-30 Intelligent attachment to a power tool
US08/655,749 1996-05-30

Publications (1)

Publication Number Publication Date
KR970075134A true KR970075134A (en) 1997-12-10

Family

ID=24630205

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019970021113A KR970075134A (en) 1996-05-30 1997-05-28 Attachment that can be attached to a power machine

Country Status (7)

Country Link
US (1) US5713419A (en)
EP (1) EP0810331B1 (en)
JP (1) JPH1060940A (en)
KR (1) KR970075134A (en)
AU (1) AU715951B2 (en)
CA (1) CA2204296C (en)
DE (1) DE69734173T2 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5842427A (en) * 1996-04-08 1998-12-01 Hunter; James Edward Apparatus for mounting on a tractor or other vehicle and providing opposed movement to digging or lifting implements
US5957213A (en) * 1996-05-30 1999-09-28 Clark Equipment Company Intelligent attachment to a power tool
JPH10219727A (en) * 1997-01-31 1998-08-18 Komatsu Ltd Working-machine controller for construction equipment
US6662881B2 (en) 2001-06-19 2003-12-16 Sweepster, Llc Work attachment for loader vehicle having wireless control over work attachment actuator
US6663114B2 (en) * 2001-12-27 2003-12-16 Case, Llc Manual suspension locking of a skid steer vehicle having a sprung suspension
US6722296B2 (en) * 2002-08-22 2004-04-20 Clyde L. Reilly Tree spade system
US7890235B2 (en) * 2005-05-27 2011-02-15 The Charles Machine Works, Inc. Determination of remote control operator position
US7546730B2 (en) * 2006-03-23 2009-06-16 Parker-Hannifin Corporation Hydraulic vehicle stabilizer system with two-stage bi-rotational hydraulic pump system
US20090136293A1 (en) * 2007-11-28 2009-05-28 Caterpillar S.A.R.L. Two wire signal over power work tool coupling and identification
US20090171482A1 (en) * 2007-12-31 2009-07-02 Spencer Mindeman Attachment controller
US20090198409A1 (en) * 2008-01-31 2009-08-06 Caterpillar Inc. Work tool data system
US8392075B2 (en) * 2008-02-25 2013-03-05 Clark Equipment Company Carrier and backhoe control system and method
DE102010031001A1 (en) * 2009-07-31 2011-07-21 TRUMPF Sachsen GmbH, 01904 Machine for conveying plate-shaped workpiece and plate of machine tool, has middle spaces i.e. workpiece holder element-middle spaces, laterally limited by thin and long workpiece holder member of workpiece holders
ES2949820T3 (en) * 2013-03-15 2023-10-03 Clark Equipment Co Improved implement performance
US10017912B2 (en) * 2014-10-21 2018-07-10 Cnh Industrial America Llc Work vehicle with improved loader/implement position control and return-to-position functionality
US10344450B2 (en) 2015-12-01 2019-07-09 The Charles Machine Works, Inc. Object detection system and method
US11903340B1 (en) 2017-02-28 2024-02-20 Brandon L. Bungart Hookup designs for attachments to skid steer loaders and the like
US10165739B1 (en) * 2017-08-10 2019-01-01 356864 Alberta Ltd. Apparatus and method for cutting a root ball
CN111684134B (en) * 2018-04-06 2023-05-16 沃尔沃建筑设备公司 Work machine, work attachment, and assembly thereof
CN112064713B (en) * 2018-08-09 2022-02-22 尹建新 Single hand operator for excavator
CN113062399B (en) * 2021-04-14 2023-08-08 徐州徐工矿业机械有限公司 Excavator rotary motor, brake control release circuit and method thereof and excavator
KR102577143B1 (en) * 2023-01-06 2023-09-12 조연수 Device for transplanting landscape tree

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3936960A (en) * 1974-06-10 1976-02-10 Clegg Samuel E Method and apparatus for rooted plant excavating and plant package produced thereby
US4403427A (en) * 1982-06-01 1983-09-13 Arthur Dahlquist Tree planter
US5081941A (en) * 1990-03-27 1992-01-21 Weeks Paul R Apparatus for excavating and transplanting trees and the like
KR920012681A (en) * 1990-12-31 1992-07-27 김연수 Automatic operation execution device of hydraulic excavator
US5188502A (en) * 1990-12-24 1993-02-23 Caterpillar, Inc. Linkage arrangement for a multi-purpose vehicle
US5257177A (en) * 1990-09-29 1993-10-26 Danfoss A/S Apparatus for controlling the movement of hydraulically movable work equipment and a path control arrangement
US5425431A (en) * 1994-02-18 1995-06-20 Clark Equipment Company Interlock control system for power machine

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4199033A (en) * 1978-05-02 1980-04-22 Gundy Joe F Jr Van Augering accessory for backhoe or the like
US4222186A (en) * 1978-06-26 1980-09-16 Molby Lloyd A Adaptable combination of vehicle and attachments
US4413684A (en) * 1981-07-27 1983-11-08 Duncklee Timothy V Laser-controlled ground leveling device with overfill sensor and wheel rise limiting device
US4620362A (en) * 1984-06-22 1986-11-04 The Boeing Company Changeable tooling system for robot end-effector
US4844685A (en) * 1986-09-03 1989-07-04 Clark Equipment Company Electronic bucket positioning and control system
US4820041A (en) * 1986-11-12 1989-04-11 Agtek Development Co., Inc. Position sensing system for surveying and grading
US4850766A (en) * 1987-01-09 1989-07-25 Yamazaki Mazaki Corporation Pull stud
US4836740A (en) * 1987-12-28 1989-06-06 Clark Equipment Company Pivotal attachment structure
JPH01192921A (en) * 1988-01-27 1989-08-03 Caterpillar Inc Controller for position of working machine for construction equipment
US4957408A (en) * 1988-04-06 1990-09-18 Toyota Jidosha Kabushiki Kaisha Device for controlling a fork of a forklift
US4918608B1 (en) * 1988-06-09 1996-07-02 Christopher O Middleton Method for automatic depth control for earth moving and grading
US4949805A (en) * 1988-07-27 1990-08-21 Clark Equipment Company Electrically controlled auxiliary hydraulic system for a skid steer loader
SE463976B (en) * 1988-09-16 1991-02-18 Rolf Mannbro ROTATOR DEVICE PROTECTOR
US5065326A (en) * 1989-08-17 1991-11-12 Caterpillar, Inc. Automatic excavation control system and method
US5398766A (en) * 1990-04-24 1995-03-21 Kabushiki Kaisha Komatsu Seisakusho Device for controlling height of blade of tracked vehicle
US5249140A (en) * 1991-05-07 1993-09-28 Vickers, Incorporated Electrohydraulic distributed control system with identical master and slave controllers
US5174115A (en) * 1991-09-30 1992-12-29 Clark Equipment Company Electrically actuated and controlled auxiliary hydraulic system for skid steer loader
JP2539726B2 (en) * 1992-08-28 1996-10-02 正 田口 Backhoe
US5347448A (en) * 1992-11-25 1994-09-13 Samsung Heavy Industries Co., Ltd. Multiprocessor system for hydraulic excavator
US5459952A (en) * 1994-04-11 1995-10-24 Dutchmaster Nurseries Ltd. Apparatus for digging and transplating trees

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3936960A (en) * 1974-06-10 1976-02-10 Clegg Samuel E Method and apparatus for rooted plant excavating and plant package produced thereby
US4403427A (en) * 1982-06-01 1983-09-13 Arthur Dahlquist Tree planter
US5081941A (en) * 1990-03-27 1992-01-21 Weeks Paul R Apparatus for excavating and transplanting trees and the like
US5257177A (en) * 1990-09-29 1993-10-26 Danfoss A/S Apparatus for controlling the movement of hydraulically movable work equipment and a path control arrangement
US5188502A (en) * 1990-12-24 1993-02-23 Caterpillar, Inc. Linkage arrangement for a multi-purpose vehicle
KR920012681A (en) * 1990-12-31 1992-07-27 김연수 Automatic operation execution device of hydraulic excavator
US5425431A (en) * 1994-02-18 1995-06-20 Clark Equipment Company Interlock control system for power machine

Also Published As

Publication number Publication date
AU1997397A (en) 1997-12-11
EP0810331A1 (en) 1997-12-03
EP0810331B1 (en) 2005-09-14
CA2204296C (en) 2005-07-05
AU715951B2 (en) 2000-02-10
JPH1060940A (en) 1998-03-03
CA2204296A1 (en) 1997-11-30
US5713419A (en) 1998-02-03
DE69734173D1 (en) 2005-10-20
DE69734173T2 (en) 2006-06-29

Similar Documents

Publication Publication Date Title
KR970075134A (en) Attachment that can be attached to a power machine
CA2174011A1 (en) Hydraulic control system providing proportional movement to an attachment of a power machine
CA2204075A1 (en) Auxiliary interlock control system for power machine
JPH1088614A (en) Auto return device for bulldozer ripper
DE60124474D1 (en) Harrow
SE0401029L (en) Method for shaking work tools
DK1281872T3 (en) Electro-hydraulic device for controlling a double-acting motor
JP2000009102A (en) Hydraulic actuator control device
KR970043642A (en) Hydraulic Control System of Hydraulic Work Machine
KR900701592A (en) Hydraulic circuit device of construction vehicle
SE9703279L (en) hydraulic System
WO2001033087A3 (en) Control arrangement for a hydraulic or pneumatic system
US5796174A (en) Device for controlling breaker in construction vehicles
US5293746A (en) Hydraulic control system
WO2001020171A8 (en) Power machine with valve mount for valve
KR900014771A (en) Hydraulic circuit for lifting device of work vehicle
SE8702019D0 (en) SETTING TO DUMP THE TURNOVER PROCESS OF HYDRAULIC POWER CIRCUITS
DE59807517D1 (en) Electro-hydraulic clamping device
JPS6332195Y2 (en)
ATE79664T1 (en) HYDRAULIC CONTROL DEVICE FOR THE WORKING HYDRAULICS OF AN AGRICULTURAL AND CONSTRUCTION VEHICLE.
JPH0740702Y2 (en) Hydraulic drive for mobile construction machinery
KR960008717Y1 (en) Oil-pressure control apparatus of bulldozer blade
CA2338733A1 (en) Hand/foot selector for electronic controls on a skid steer loader
JPS6312207Y2 (en)
KR960012405B1 (en) Fluid pressure control circuit

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application